Getting Remote Directories

Question

Would anyone have a link to a webpage that can give me an example of how to get all the directories on my web server?
I would then like to put them in a JTree.

Also, please view the below code. Can someone tell me if this would be the right kind of class for the JTree.
After that I can figure out the modifications I need to make to it. I am not sure if the method getRoot() in
this case will work to get the remote working directory. Thank you for any help.

 public class RemoteFileSystemModel extends AbstractTreeModel implements Serializable {

    private String root;

    public RemoteFileSystemModel() {
     
    }

    public RemoteFileSystemModel(String startPath) {
        root = startPath;
    }

    public Object getRoot() {
        return new File(root);
    }

    public Object getChild(Object parent, int index) {
        File directory = (File)parent;
        String[] children = directory.list();
        return new File( directory, children[index] );
    }

    public int getChildCount(Object parent) {
        File fileSysEntity = (File)parent;
        if (fileSysEntity.isDirectory()) {
            String[] children = fileSysEntity.list();
            return children.length;
        } else {
            return 0;
        }
    }

    public boolean isLeaf( Object node ) {
        return ((File)node).isFile();
    }

    public void valueForPathChanged( TreePath path, Object newValue ) {}
  

    public int getIndexOfChild( Object parent, Object child ) {
        File directory = (File)parent;
        File fileSysEntity = (File)child;
        String[] children = directory.list();
        int result = -1;

        for (int i = 0; i < children.length; ++i) {
            if(fileSysEntity.getName().equals(children[i])) {
                result = i;
                break;
            }
        }

        return result;
    }
}